* {
  margin: 0;
  padding: 0;
  list-style: none;
}

.dialog {
  width: 100vw;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.dialog .mask {
  width: 100%;
  height: 100%;
  background: #000;
  opacity: .6;
  position: absolute;
  left: 0;
  top: 0;
}

.dialog .tip {
  width: 60%;
  height: 60%;
  background: #fff;
  z-index: 10;
}

.dialog .tip .sure, .dialog .tip .close {
  display: inline-block;
  width: 100px;
  height: 35px;
  background: lightblue;
  text-align: center;
  line-height: 35px;
  margin-left: 50px;
}

.hide {
  display: none;
}
